Wordpress custom comment form

wordpress-custom-comment-form.php

<?php if ( comments_open() ) : ?>

	<form action="<?php echo site_url('/wp-comments-post.php') ?>" method="post" id="comments">
		<ul class="form-collection">
			<?php if ( is_user_logged_in() ) : global $current_user; ?>
				<li>
					<span class="field-hint">Logged in as <?php echo $current_user->user_login ?></span>
				</li>
			<?php else : ?>
				<li>
					<label for="comment-author" class="field-label">Name</label>
					<input type="text" name="author" id="comment-author" />
				</li>
				<li>
					<label for="comment-email" class="field-label">Email</label>
					<input type="email" name="email" id="comment-email" />
				</li>
			<?php endif ?>
			<li>
				<label for="comment-body" class="field-label">Comment</label>
				<textarea name="comment" id="comment-body"></textarea>
			</li>
			<li class="button-field">
				<input type="submit" name="submit" value="Post comment" />
				<?php
					comment_id_fields();

					if ( current_user_can( 'unfiltered_html' ) )
					{
						wp_nonce_field( 'unfiltered-html-comment_' . get_the_ID(), '_wp_unfiltered_html_comment', false );
					}
				?>
			</li>
		</ul>
	</form>

<?php else : ?>

	<p class="nocomments">
		Comments are closed for this article.
	</p>

<?php endif ?>

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i have problem with your code in my site https://filmr.ir/hamrafigh-series-download/